When it comes to synonyms for "dropped over," there are a number of options to choose from depending on the context of the situation. If you want to convey that someone made a quick visit or delivery, you might opt for phrasing like "stopped in" or "swung by." If you're looking to emphasize the idea of physically lowering something down, you might use "lowered," "deposited," or "set down." If you want to convey a sense of surprise or suddenness, you could try "popped in" or "appeared unexpectedly." Ultimately, the choice of synonym depends on the tone and meaning that you're trying to convey, so take some time to consider the best fit for your situation.